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- Mon Jan 12, 2009 10:13 am
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Unusual Light Pillars Over Latvia (2009 Jan 12)
- Replies: 176
- Views: 185471
Re: Unusual Light Pillars Over Latvia (2009 January 12)
The source of the light in not monochromatic. What you are seeing are the differences the different wavelength have due to the refraction of light through the crystal that also acts as a prism.